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Finding the Fourth Proportional to 171,973.14, 258,059.34 and 72,124.44

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Solution

The fourth proportional to 171,973.14, 258,059.34 and 72,124.44 is: 108,228.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,973.14 : 258,059.34 = 72,124.44 : x
  2. Step 2: Convert to fraction form
    171,973.14/258,059.34 = 72,124.44/x
  3. Step 3: Cross multiply
    171,973.14x = 258,059.34 × 72,124.44
  4. Step 4: Simplify right side
    171,973.14x = 18,612,385,384.27
  5. Step 5: Solve for x
    x = 18,612,385,384.27/171,973.14
  6. Step 6: Final answer
    x = 108,228.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.